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223433

Sigma-Aldrich

Sodium oxalate

ACS reagent, ≥99.5%

Synonym(s):

Ethanedioic acid sodium salt, Oxalic acid disodium salt

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About This Item

Linear Formula:
NaOOCCOONa
CAS Number:
62-76-0
Molecular Weight:
134.00
Beilstein/REAXYS Number:
3631622
EC Number:
200-550-3
MDL number:
MFCD00012465
UNSPSC Code:
12352300
PubChem Substance ID:
329752308
NACRES:
NB.24

grade

ACS reagent

description

neutrality passes test

assay

≥99.5%

form

powder

impurities

hot H2SO4, passes test (darkened)
≤0.005% insolubles

loss

≤0.01% loss on drying

anion traces

chloride (Cl-): ≤0.002%
sulfate (SO42-): ≤0.002%

cation traces

Fe: ≤0.001%
K: ≤0.005%
NH4+: ≤0.002%
heavy metals (as Pb): ≤0.002%

SMILES string

[Na+].[Na+].[O-]C(=O)C([O-])=O

InChI

1S/C2H2O4.2Na/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2

InChI key

ZNCPFRVNHGOPAG-UHFFFAOYSA-L

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General description

Sodium oxalate is a water soluble inorganic salt mainly used for the standardization of permanganate solution during titration.

Application

Sodium oxalate may be used as a dispersant and a coordination agent for the electrooxidation of formic acid using a palladium nanoparticle catalyst dispersed on the purified multi-walled carbon nanotubes (P-MWCNTs). In combination with sodium hydroxide, it may be used to mediate the preparation of Cu/ZrO2 catalyst from copper nitrite and zirconium nitrate solution mixture via coprecipitation method.

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pictograms

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GHS07

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Warning

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Sodium Hydroxide-Sodium Oxalate-Assisted Co-Precipitation of Highly Active and Stable Cu/ZrO2 Catalyst in the Partial Oxidation of Methanol to Hydrogen.
Chen H, et al.
Catalysis Letters, 131(3-4), 632-642 (2009)
Electrooxidation of formic acid catalyzed by Pd nanoparticles supported on multi-walled carbon nanotubes with sodium oxalate.
Bai Z, et al.
Ionics, 19(3), 543-548 (2013)
Guillem Revilla-López et al.
Langmuir : the ACS journal of surfaces and colloids, 35(36), 11912-11922 (2019-08-03)
Biominerals formed by DNA and calcium oxalate (CaOx) or hydroxyapatite (HAp), the most important and stable phase of calcium phosphate) have been examined and compared using a synergistic combination of computer simulation and experimental studies. The interest of this comparison
The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals
Royal Society of Chemistry null
Lu Gao et al.
International journal of phytoremediation, 15(4), 307-319 (2013-03-16)
Phytolacca americana L. can accumulate large amounts of heavy metals in its aerial tissues, especially cadmium (Cd) and manganese (Mn). It has great potential for use in phytoextraction of metals from multi-metal-contaminated soils. This study was conducted to further investigate
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